CN101988599A - Novel switching mechanism for valve electric actuators - Google Patents
Novel switching mechanism for valve electric actuators Download PDFInfo
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- CN101988599A CN101988599A CN2010105307573A CN201010530757A CN101988599A CN 101988599 A CN101988599 A CN 101988599A CN 2010105307573 A CN2010105307573 A CN 2010105307573A CN 201010530757 A CN201010530757 A CN 201010530757A CN 101988599 A CN101988599 A CN 101988599A
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Abstract
The invention relates to a novel switching mechanism for valve electric actuators, which comprises a switching shaft device, a spline shaft device, a pair of positioning arms and a manual wheel, wherein the switching shaft device comprises a switching handle, a switching shaft and a shifting fork, the switching handle and the shifting fork are both arranged on the switching shaft fixedly, a clamping tongue extending outwards along the surface of the switching shaft is arranged on the lower end of the switching shaft, the end part of the clamping tongue is clamped between the positioning arms, the positioning arms are movably arranged on a box body of a valve electric actuator, and a tension spring is arranged between the positioning arms. The spline shaft device comprises a spline shaft, a worm gear arranged on the spline shaft, and a pin roll, a clutch, a pushing rod and a manual clutch which are all arranged on the side of the worm gear vertically, wherein the spline shaft is vertical to the positioning arms and is clamped between the positioning arms, the clutch and the manual clutch are both matched with the spline shaft by splines, and jaws are respectively arranged on the end plane of the clutch opposite to the worm gear and the end plane of the manual clutch opposite to the manual wheel. The invention has the advantages of simple and compact structure, space saving, cost saving and automatic switching.
Description
Technical field
The present invention relates to a kind of novel electric device for valve switching mechanism.
Background technique
Electric device for valve all should be equipped with manual-operating mechanism, in order to change operating mode, also switch means should be arranged, promptly manually → and electronic switching mechanism.The switch forms that electric device for valve originally adopts: be transferred to worm shaft by the motor multi-stage gear, worm shaft has gear on worm, extension spring, interposed clutch, is transferred to worm gear, output shaft by worm shaft again.Manual-operating mechanism is independently manual, and manually axle one end is installed manual gear, the other end installation handwheel.By switching part, stir interposed clutch, make gear and manual gear engagement on the interposed clutch, this moment can be manually.When electronic, motor rotates, and drives the gear on worm rotation, and interposed clutch resets under the extension spring effect, and interposed clutch and manual gear are thrown off, and gets back to the electric operating position this moment again.The shortcoming of this switching construction is: switching mechanism needs two axles at least, complex structure, and space hold is big.
Summary of the invention
For addressing the above problem, the invention provides a kind of novel electric device for valve switching mechanism, this structure makes manual axle, electric drive axle on the same axis, and is simple in structure, compact.
For achieving the above object, the technical solution adopted in the present invention is: novel electric device for valve switching mechanism, and this switching mechanism is positioned at the electric device for valve casing, comprises switching shaft device, splined shaft device, a pair of positioning arm; Described switching shaft device comprises and switches handle, switching shaft, shift fork, and described switching handle is installed in the switching shaft upper end, and described shift fork is vertical with switching shaft and be installed on the switching shaft, and described shift fork has a short cylindrical away from the free end of switching shaft; Have one along the switching shaft axle is surperficial and perpendicular to the outward extending block tongue of switching shaft, described block tongue end is stuck between a pair of positioning arm in the lower end of switching shaft; The end of described positioning arm is movably installed on the electric device for valve casing; Described a pair of positioning arm connects by an extension spring, and the block tongue side is close in described extension spring; Described splined shaft device comprises splined shaft, gear on worm, bearing pin, clutch, push rod, manual clutch, and described splined shaft is vertical with positioning arm, and is sandwiched between a pair of positioning arm; Described gear on worm is movably installed on the splined shaft by the gear lining, and described bearing pin vertically is installed on the gear on worm side, in described gear on worm end the tooth embedding is arranged; Described clutch cooperates with splined shaft with spline and is adjacent with gear on worm, at clutch and gear on worm opposing end faces the tooth embedding is arranged, and at the circumferential surface of clutch one circular groove coaxial with it is arranged, and the short cylindrical on the described shift fork is positioned at circular groove; The other end at clutch has a straight pin, and it is interior and vertical with splined shaft that this straight pin is fixed in clutch; Described push rod is positioned at the splined shaft axial centre and one end contacts with the straight pin circumferential surface, its other end with fixedly connected in the manual clutch of splined shaft end with spline fitted, described push rod cooperates with splined shaft by a dishful of spring; Away from the end face of push rod the tooth embedding is arranged at described manual clutch.
Also comprise the manual pulley that is movably installed on the electric device for valve casing, described manual pulley is positioned at the axial side of splined shaft and adjacent with manual clutch, in manual pulley and manual clutch opposing end faces the tooth embedding is arranged, and described manual pulley is coaxial with splined shaft.
Described positioning arm is movably installed on the electric device for valve casing by screw, for preventing to switch handle misoperation when electric device for valve is worked, in described positioning arm inboard first ladder surface and second ladder surface are arranged, described block tongue end be stuck in described positioning arm first ladder surface the forward position or be positioned at first ladder surface and be stuck in the forward position of second ladder surface.
For making switching mechanism from the easier electric operating that switches to of manually-operable, described gear on worm side axial has tooth for one section, and another section is anodontia, and described bearing pin vertically is installed in anodontia section side of gear on worm and stretches out from this anodontia section side; Described a pair of positioning arm is clipped on the anodontia section side of gear on worm.
Move switching shaft for convenience, described switching shaft is movably installed on the electric device for valve casing, and described switching handle is installed in the switching shaft upper end by key, locks by bolt on the switching shaft top; Described shift fork is installed on the switching shaft by key.
For preventing that gear on worm breaks away from splined shaft, one back-up ring that is installed on the splined shaft is arranged in end face one side of described gear on worm anodontia embedding.
Be directly to be transferred to gear on worm by motor when the present invention is electronic, gear on worm, clutch, manual clutch, push rod are installed on the same axis, fuse.When manual switchover, promote to switch handle, making shift fork promote clutch moves right, positioning arm is replied under the effect of extension spring, and straight pin promotes push rod and moves right the tooth embedding of clutch and the tooth embedding of gear on worm disengagement on the clutch, meanwhile, manual clutch moves right, the tooth embedding of manual clutch and manually cog embedding engagement, and this moment can be manually.When electronic, the motor rotation drives gear on worm and rotates, and bearing pin rotates simultaneously, bearing pin props up positioning arm, positioning arm is opened, and clutch is moved to the left, and meshes with gear on worm, push rod is moved to the left with manual clutch under the effect of dish spring, manual clutch and manual pulley are thrown off, and get back to the electric operating position this moment, and this process is that electric device for valve itself is finished automatically.
The present invention is simple in structure, compact, saves the space, reduces cost, and makes more automation of handover operation.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the part plan structure schematic representation after the electric device for valve casing being cut open among Fig. 1.
Fig. 3 is the structural representation of positioning arm.
Fig. 4 is the structural representation of splined shaft device.
Fig. 5 is the position relational structure schematic representation of splined shaft and manual pulley.
Among the figure: positioning arm 1, the first ladder surface 1-1, the forward position 1-1-1 of first ladder surface, the second ladder surface 1-2, the forward position 1-2-1 of second ladder surface, manual pulley 2, tooth embedding 2-1, switch handle 3, key 3-1, switching shaft 4, block tongue 4-1, shift fork 5, key 5-1, short cylindrical 5-2, electric device for valve casing 6, bolt 7, extension spring 8, splined shaft 9, gear on worm 10, anodontia section side 10-1, tooth embedding 10-2, bearing pin 11, clutch 12, spline 12-1, tooth embedding 12-2, circular groove 12-3, push rod 13, manual clutch 14, spline 14-1, tooth embedding 14-2, straight pin 15, dish spring 16, screw 17, gear lining 18, back-up ring 19.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Referring to Fig. 1～Fig. 5, novel electric device for valve switching mechanism comprises switching shaft device, splined shaft device, a pair of positioning arm 1, manual pulley 2.
The switching shaft device comprises switching handle 3, switching shaft 4, shift fork 5, and switching shaft 4 is movably installed on the electric device for valve casing 6, switches handle 3 and is installed in switching shaft 4 upper ends by key 3-1, locks by bolt 7 on switching shaft 4 tops; Shift fork 5 and switching shaft 4 are vertical and be installed on the switching shaft 4 by key 5-1, and shift fork 5 has a short cylindrical 5-2 away from the free end of switching shaft 4; In the lower end of switching shaft 4 block tongue 4-1 is arranged, block tongue 4-1 end is stuck between a pair of positioning arm 1; The end of positioning arm 1 is movably installed on the electric device for valve casing 6 by screw 17; A pair of positioning arm 1 connects by an extension spring 8, and block tongue 4-1 side is close in extension spring 8.
The splined shaft device comprises splined shaft 9, gear on worm 10, bearing pin 11, clutch 12, push rod 13, manual clutch 14, and splined shaft 9 is vertical with positioning arm 1, and is sandwiched between a pair of positioning arm 1; Gear on worm 10 is movably installed on the splined shaft 9 by gear lining 18, one section tooth is arranged in gear on worm 10 side axial, another section is anodontia, bearing pin 11 vertically is installed in 10 anodontia sections side 10-1 of gear on worm and stretches out from this anodontia section side 10-1, a pair of positioning arm 1 is clipped on the anodontia section side 10-1 of gear on worm 10, in gear on worm 10 ends tooth embedding 10-2 is arranged.End face one side in gear on worm 10 anodontia embeddings has back-up ring 19.Clutch 12 cooperates with splined shaft 9 with spline 12-1, in clutch 12 and gear on worm 10 opposing end faces tooth embedding 12-2 is arranged, and at the circumferential surface of clutch 12 a circular groove 12-3 coaxial with it is arranged, and the short cylindrical 5-2 on the shift fork 5 is positioned at circular groove 12-3; In the other end inside of clutch 12 straight pin 15 is arranged; Push rod 13 is positioned at splined shaft 9 axial centre and one end contacts with straight pin 15 circumferential surfaces, fixedlys connected with the manual clutch 14 that is matched with splined shaft 9 ends with spline 14-1 in its other end, and push rod 13 cooperates with splined shaft 9 by a dishful of spring 16; Away from the end face of push rod 13 tooth embedding 14-2 is arranged at manual clutch 14.
When manual switchover, promote the switching handle 3 among Fig. 1, shift fork 5 and block tongue 4-1 are along with rotating simultaneously, the clutch 12 that the short cylindrical 5-2 of shift fork 5 stirs the splined shaft device moves right, the tooth embedding 10-2 of the tooth embedding 12-2 of clutch 12 and gear on worm 10 breaks away from, the first ladder surface 1-1 and the second ladder surface 1-2 are arranged in positioning arm 1 inboard, block tongue 4-1 end promptly slides into the forward position 1-2-1 that the first ladder surface 1-1 went up and be stuck in second ladder surface, and block tongue 4-1 squeezed extension spring 8 to the right and made extension spring 8 produce left a spring-back force this moment.Clutch 12 its inner straight pins 15 of drive head on push rod 13 and move right, and promote 13 drive manual clutchs 14 and move right, the tooth embedding 2-1 engagement of the tooth embedding 14-2 of manual clutch 14 and manual pulley 2, get final product manually this moment.In the time of manually, the first ladder surface 1-1 that the block tongue 4-1 on the switching shaft 4 is positioned at positioning arm 1 goes up and can not be returned to the forward position 1-1-1 of first ladder surface of positioning arm 1, and this can prevent that misoperation from switching handle 3 and causing switching shaft 4 counter-rotatings and influence manually-operable.
When electronic, the rotation of motor (not shown), driving gear on worm 10 rotates, bearing pin 11 on it rotates simultaneously, bearing pin 11 props up positioning arm 1 makes positioning arm 1 open, the spring-back force of the extension spring 8 on the positioning arm 1 makes block tongue 4-1 slide into the forward position 1-1-1 of first ladder surface of positioning arm 1 left, promptly drive switching shaft 4 to counter-rotation, clutch 12 is stirred and is moved to the left by the short cylindrical 5-2 of shift fork 5, the tooth embedding 10-2 engagement of the tooth embedding 12-2 of its end and gear on worm 10, push rod 13 resets under the effect of dish spring 16, promptly drives manual clutch 14 and is moved to the left, manual clutch 14 is thrown off with manual pulley 2, promptly gets back to the electric operating position.
The present invention saves the space, and simple in structure, compact, cost is low.
Claims (6)
1. novel electric device for valve switching mechanism, this switching mechanism is positioned at the electric device for valve casing, it is characterized in that: comprise switching shaft device, splined shaft device, a pair of positioning arm; Described switching shaft device comprises and switches handle, switching shaft, shift fork, and described switching handle is installed in the switching shaft upper end, and described shift fork is vertical with switching shaft and be installed on the switching shaft, and described shift fork has a short cylindrical away from the free end of switching shaft; Have one along the switching shaft axle is surperficial and perpendicular to the outward extending block tongue of switching shaft, described block tongue end is stuck between a pair of positioning arm in the lower end of switching shaft; The end of described positioning arm is movably installed on the electric device for valve casing; Described a pair of positioning arm connects by an extension spring, and the block tongue side is close in described extension spring; Described splined shaft device comprises splined shaft, gear on worm, bearing pin, clutch, push rod, manual clutch, and described splined shaft is vertical with positioning arm, and is sandwiched between a pair of positioning arm; Described gear on worm is movably installed on the splined shaft by the gear lining, and described bearing pin vertically is installed on the gear on worm side, in described gear on worm end the tooth embedding is arranged; Described clutch cooperates with splined shaft with spline and is adjacent with gear on worm, at clutch and gear on worm opposing end faces the tooth embedding is arranged, and at the circumferential surface of clutch one circular groove coaxial with it is arranged, and the short cylindrical on the described shift fork is positioned at circular groove; The other end at clutch has a straight pin, and it is interior and vertical with splined shaft that this straight pin is fixed in clutch; Described push rod is positioned at the splined shaft axial centre and one end contacts with the straight pin circumferential surface, its other end with fixedly connected in the manual clutch of splined shaft end with spline fitted, described push rod cooperates with splined shaft by a dishful of spring; Away from the end face of push rod the tooth embedding is arranged at described manual clutch.
2. novel electric device for valve switching mechanism according to claim 1, it is characterized in that: also comprise the manual pulley that is movably installed on the electric device for valve casing, described manual pulley is positioned at the axial side of splined shaft and adjacent with manual clutch, in manual pulley and manual clutch opposing end faces the tooth embedding is arranged, described manual pulley is coaxial with splined shaft.
3. novel electric device for valve switching mechanism according to claim 1 and 2, it is characterized in that: described positioning arm is movably installed on the electric device for valve casing by screw, in described positioning arm inboard first ladder surface and second ladder surface are arranged, described block tongue end be stuck in described positioning arm first ladder surface the forward position or be positioned at first ladder surface and be stuck in the forward position of second ladder surface.
4. novel electric device for valve switching mechanism according to claim 3, it is characterized in that: described gear on worm side axial has tooth for one section, another section is anodontia, and described bearing pin vertically is installed in anodontia section side of gear on worm and stretches out from this anodontia section side; Described a pair of positioning arm is clipped on the anodontia section side of gear on worm.
5. novel electric device for valve switching mechanism according to claim 1 and 2, it is characterized in that: described switching shaft is movably installed on the electric device for valve casing, described switching handle is installed in the switching shaft upper end by key, locks by bolt on the switching shaft top; Described shift fork is installed on the switching shaft by key.
6. novel electric device for valve switching mechanism according to claim 4 is characterized in that: end face one side in the embedding of described gear on worm anodontia has a back-up ring that is installed on the splined shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105307573A CN101988599A (en) | 2010-11-04 | 2010-11-04 | Novel switching mechanism for valve electric actuators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105307573A CN101988599A (en) | 2010-11-04 | 2010-11-04 | Novel switching mechanism for valve electric actuators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101988599A true CN101988599A (en) | 2011-03-23 |
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ID=43745295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105307573A Pending CN101988599A (en) | 2010-11-04 | 2010-11-04 | Novel switching mechanism for valve electric actuators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101988599A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795729A (en) * | 2017-11-24 | 2018-03-13 | 扬州电力设备修造厂有限公司 | A kind of link rod frame formula hand switching mechanism of electric performance device |
| CN108138987A (en) * | 2015-10-01 | 2018-06-08 | 埃迈海卓尼克工程国际有限责任公司 | For the actuator of control valve |
-
2010
- 2010-11-04 CN CN2010105307573A patent/CN101988599A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108138987A (en) * | 2015-10-01 | 2018-06-08 | 埃迈海卓尼克工程国际有限责任公司 | For the actuator of control valve |
| CN108138987B (en) * | 2015-10-01 | 2020-01-17 | 埃迈海卓尼克工程国际有限责任公司 | Actuator for control valve |
| US10982784B2 (en) | 2015-10-01 | 2021-04-20 | Imi Hydronic Engineering International Sa | Actuator for controlling a valve |
| CN107795729A (en) * | 2017-11-24 | 2018-03-13 | 扬州电力设备修造厂有限公司 | A kind of link rod frame formula hand switching mechanism of electric performance device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110323 |